CN110094427A - Novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring - Google Patents
Novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring Download PDFInfo
- Publication number
- CN110094427A CN110094427A CN201910495702.4A CN201910495702A CN110094427A CN 110094427 A CN110094427 A CN 110094427A CN 201910495702 A CN201910495702 A CN 201910495702A CN 110094427 A CN110094427 A CN 110094427A
- Authority
- CN
- China
- Prior art keywords
- sealing
- groove ball
- ball bearing
- deep groove
- speed deep
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 118
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 230000003319 supportive effect Effects 0.000 claims abstract description 28
- 229920000459 Nitrile rubber Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000004519 grease Substances 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
- F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
Abstract
Novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring, belongs to technical field of bearings, and high revolving speed deep groove ball bearing includes centre bore, inner ring, outer ring, bearing dustproof groove；Novel anti-leakage sealing ring includes sealing ring main body, sealing outer lip, sealing epipharynx；Sealing epipharynx includes contact lip and non-contact lip, and contact lip is arranged in the one side contacted with high revolving speed deep groove ball bearing and extends to bottom；Seal outer lip and outer ring tight fit, sealing epipharynx and inner ring tight fit；It further include profile skeleton, profile skeleton is structure as a whole, is whole in circular ring shape, and any side cross-sectional view of circular ring shape profile skeleton includes the supportive body, sealing outer lip supporter in the outer part and sealing epipharynx supporter in the inner part at middle part；Sealing outer lip supporter includes the traversing section connecting with supportive body and the raised section longitudinally disposed outward by traversing section；The beneficial effects of the present invention are: increasing the intensity of sealing ring, the leakage of internal and external environment grease can be prevented simultaneously.
Description
Technical field
The present invention is high revolving speed deep groove ball bearing sealing ring, in particular to novel high rotary speed deep groove ball bearing waterproof leakproof rouge
Sealing ring, this product are the gardens electric tool practical technique of high revolving speed deep groove ball bearing waterproof leakproof rouge, belong to bearing skill
Art field.
Background technique
Bearing sealed ring is the main seal part in bearing, and gardens electric tool grass trimmer bears to use with high speed shaft
Adverse circumstances influence, the revolving speed of bearing is higher (11000RPM), as shown in figure 9, current gardens electric tool grass trimmer
Used in bearing be that inside is coated with the bearing sealed ring of L-type skeleton, the leak of generally existing bearing, leakage rouge, sealing performance
Poor, extraneous moisture, dust and tool internal gear wheel grease penetrates into Bearing inner, and the grease of Bearing inner leaks, leads
Causing used bearing always to will appear, different degrees of leakage rouge phenomenon or temperature rise are too fast, and can all directly affect bearing uses the longevity
Life.Analyzed, cause to have the main reason for leaking rouge: only wheel oil accounts for 80% of inner space or so, under the conditions of running at high speed, only
Wheel high speed constantly occlusion, internal pressure are gradually increased, and bearing internal external portion generates pressure difference, causes gear oil from Bearing outer through close
Seal outer lip and epipharynx enter Bearing inner, are increasing the oil quantity in bearing, growing number of while high speed rotation
Grease will be overflowed from the other side of bearing.And bearing appearance is caused to be peeled off in advance, it is in high speed rotation, only wheel is continuous at a high speed
It being engaged and wears, cause the metallic particles only taken turns in grease more and more, the oil of only taking turns being contaminated enters Bearing inner,
Bearing will be will lead to and premature failure phenomenon occur, the service life substantially reduces.The generation of bearing waterproof, leakproof rouge phenomenon in order to prevent,
The magnitude of interference that sealing ring Yu interior collar dustproof groove can suitably be increased, but if magnitude of interference is excessive, sealing ring and inner ring contact tension, will
Will lead to bearing frictional torque increase, bearing temperature rise can be excessively high when high speed rotation, occur fatigue flake in advance so as to cause bearing,
It is unable to reach long life requirement.
Summary of the invention
The purpose of the present invention is for it is above-mentioned in the prior art, the generation of bearing waterproof, leakproof rouge phenomenon in order to prevent, together
When avoid result in bearing frictional torque increase, bearing temperature rise can be excessively high when high speed rotation, and fatigue flake occurs in advance in bearing, can not
The case where reaching long life requirement a kind of dual lip configuration sealing ring of profile skeleton is provided, under the premise of not increasing cost,
It can achieve while can prevent the grease of Bearing inner from leaking, be also possible to prevent external moisture, dust and grease and penetrate into
Purpose.
To achieve the goals above the technical solution adopted by the present invention is that: novel high rotary speed deep groove ball bearing waterproof leakproof rouge
Sealing ring, abbreviation novel anti-leakage sealing ring, are used cooperatively with high revolving speed deep groove ball bearing；The high revolving speed deep groove ball bearing includes
Centre bore, inner ring and outer ring, are provided with bearing dustproof groove in the inner ring and outer ring, and the two of each high revolving speed deep groove ball bearing
Side is each provided with 1 novel anti-leakage sealing ring；Novel anti-leakage sealing ring includes sealing circle body, and the novel anti-leakage sealing ring is whole
In circular ring shape；The sealing circle body includes sealing ring main body, the sealing outer lip on the outside of circular ring shape and close on the inside of circular ring shape
Seal epipharynx；The sealing epipharynx includes contact lip and non-contact lip, and the contact lip setting connects with high revolving speed deep groove ball bearing
The one side of touching simultaneously extends to bottom；The sealing outer lip and outer ring tight fit, the sealing epipharynx and inner ring tight fit；
It further include profile skeleton, the profile skeleton is structure as a whole, is whole in circular ring shape, and circular ring shape profile skeleton is appointed
One side cross-sectional view includes the supportive body, sealing outer lip supporter in the outer part and sealing epipharynx supporter in the inner part at middle part；
The sealing outer lip supporter includes the traversing section connecting with supportive body and the raised section longitudinally disposed outward by traversing section；
The supportive body is pressed with sealing ring main body, is tightly secured together, and supportive body setting is deep by high revolving speed
The one side of ditch ball bearing, the sealing outer lip supporter are covered by sealing outer lip, and the sealing epipharynx supporter is wrapped by
In sealing epipharynx；
The angle of the traversing section and supportive body is 90-100 °, and the raised section is parallel with supportive body.
Sealing outer lip, sealing epipharynx and the outer ring of novel anti-leakage sealing ring, the bearing dustproof groove of inner ring are tightly connected.
The angle of the traversing section and supportive body is 95 °.
The sealing epipharynx supporter is tilted to high revolving speed deep groove ball bearing side, the sealing epipharynx and supportive body
Angle is 120-160 °.
The angle of the sealing epipharynx and supportive body is 141 °.
Profile skeleton is stamped to form by high strength structure plate through conventional stamping apparatus and the dedicated cold-punching mold of profile skeleton,
The profile skeleton is SPCC by the product grade of high strength structure plate, and the product type of the stamping equipment is opened for J23-16
Formula inclinable power press.
The diameter of the high revolving speed deep groove ball bearing centre bore is 12mm, and the outer diameter of high revolving speed deep groove ball bearing is 32mm.
Sealing ring material of main part Japan's JSR nitrile rubber, product grade are N230 virgin rubber and auxiliary material.
Compared with prior art, the beneficial effects of the present invention are: the research and development of novel anti-leakage ring structure technology, use are different
Type skeleton structure further increases the intensity of sealing ring, can prevent the leakage of internal and external environment grease simultaneously, preferably play close
The sealing function of seal；The grease that can effectively prevent Bearing inner leaks, and sealing ring can be made to cooperate with outer collar dustproof groove tighter
It is close, it can preferably prevent grease from leaking from the outside of sealing ring；It can preferably prevent the transmission gear grease adjacent with bearing from seeping
Enter Bearing inner.1.5 can be improved using the bearing of novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring, its service life
Again to 2 times or more.
Detailed description of the invention
Fig. 1-1 is: the present invention and high revolving speed deep groove ball bearing assemble front sectional view；
Fig. 1-2 is: the portion the A enlarged drawing of Fig. 1-1 (display novel anti-leakage sealing ring both ends and inside and outside circle are tightly connected)；
Fig. 2-1 is: top view of the present invention；
Fig. 2-2 is: the portion the B enlarged drawing (and being superimposed with sectional view of the present invention) of Fig. 2-1；
Fig. 3-1 is: bottom view of the present invention；
Fig. 3-2 is: the portion the C enlarged drawing (and being superimposed with sectional view of the present invention) of Fig. 3-1；
Fig. 4 is: the A-A cutaway view Amplified image of Fig. 2-1；
Fig. 5 is: the portion the D enlarged drawing of Fig. 4 (lug boss of display profile skeleton supports situation to the reinforcing of sealing outer lip)；
Fig. 6-1 is: profile skeleton top view；
Fig. 6-2 is: profile skeleton bottom view；
Fig. 7 is: the B-B cutaway view Amplified image of Fig. 6-1；；
Fig. 8 is: the portion the E enlarged drawing of Fig. 7；
Fig. 9 is: background technique: inside is coated with the conventional bearings sealing ring cross section structure figure of Z-type skeleton.
Description of symbols: novel anti-leakage sealing ring 1, sealing outer lip 102, sealing epipharynx 103, connects sealing ring main body 101
Touch lip 10301, non-contact lip 10302, profile skeleton 104, supportive body 10401, sealing outer lip supporter 10402, traversing section
10402A, raised section 10402B, sealing epipharynx supporter 10403, high revolving speed deep groove ball bearing 2, centre bore 201, outer ring 202,
Inner ring 203, bearing dustproof groove 204.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as a limitation of the invention.
As shown in Fig. 1-1 to Fig. 8,2 waterproof leakproof rouge sealing ring of novel high rotary speed deep groove ball bearing, abbreviation novel anti-leakage are close
Seal 1 is used cooperatively as shown in Fig. 1-1 to Fig. 4 with high revolving speed deep groove ball bearing 2；The high revolving speed deep groove ball bearing 2 includes
Centre bore 201, outer ring 202, inner ring 203 are provided with bearing dustproof groove 204, high revolving speed in the inner ring 203 and outer ring 202
The two sides of deep groove ball bearing 2 are each provided with 1 novel anti-leakage sealing ring 1；Novel anti-leakage sealing ring 1 includes sealing circle body, described
Whole novel anti-leakage sealing ring 1 is in circular ring shape；The sealing circle body includes sealing ring main body 101, the sealing on the outside of circular ring shape
Outer lip 102 and the sealing epipharynx 103 on the inside of circular ring shape；The sealing epipharynx 103 includes contact lip 10301 and non-contact lip
10302, the contact lip 10301 is arranged in the one side contacted with high revolving speed deep groove ball bearing 2 and extends to bottom；It is described
Seal outer lip 102 and 202 tight fit of outer ring, the sealing epipharynx 103 and 203 tight fit of inner ring；
As shown in Fig. 4 to Fig. 8, novel anti-leakage sealing ring 1 further includes profile skeleton 104, and the profile skeleton 104 is integrated
Structure, it is whole be in circular ring shape, any side cross-sectional view of circular ring shape profile skeleton 104 includes the supportive body 10401, outer at middle part
The sealing outer lip supporter 10402 of side and sealing epipharynx supporter 10403 in the inner part；The sealing outer lip supporter 10402
Including the traversing section 10402A being connect with supportive body 10401 and the raised section longitudinally disposed outward by traversing section 10402A
10402B；
The supportive body 10401 is pressed with sealing ring main body 101, is tightly secured together, and supportive body 10401 is arranged
In the one side for leaning on high revolving speed deep groove ball bearing 2, the sealing outer lip supporter 10402 is covered by sealing outer lip 102, described
Sealing epipharynx supporter 10403 is covered by sealing epipharynx 103；
As shown in figure 8, the angle α of the traversing section 10402A and supportive body 10401 is 95 °, the raised section
10402B is parallel with supportive body 10401.
As Figure 1-1, the sealing outer lip 102 of novel anti-leakage sealing ring 1, sealing epipharynx 103 and outer ring 202, inner ring 203
Bearing dustproof groove 204 be tightly connected.
As shown in fig. 7, the sealing epipharynx supporter 10403 is tilted to high 2 side of revolving speed deep groove ball bearing, the sealing
The angle β of epipharynx 103 and supportive body 10401 is 141 °.
Profile skeleton 104 by high strength structure plate through conventional stamping apparatus and the dedicated cold-punching mold punching press of profile skeleton and
At the profile skeleton 104 is SPCC by the product grade of high strength structure plate, and the product type of the stamping equipment is
J23-16 open-type inclinable press.
As Figure 1-1, the diameter phi A of 2 centre bore 201 of high revolving speed deep groove ball bearing is 12mm, high revolving speed zanjon
The outer diameter φ B of ball bearing 2 is 32mm, and the diameter of high 2 steel ball of revolving speed deep groove ball bearing is 5.953mm.
101 material of sealing ring main body Japan's JSR nitrile rubber, product grade are N230 virgin rubber and auxiliary material.
Embodiment described above, the only present invention more preferably embodiment, those skilled in the art is in the present invention
The usual variations and alternatives carried out in technical proposal scope should be all included within the scope of the present invention.
Claims (8)
1. novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring, abbreviation novel anti-leakage sealing ring, with high revolving speed deep-groove ball
Bearing fit uses；The high revolving speed deep groove ball bearing includes centre bore, inner ring and outer ring, is respectively provided in the inner ring and outer ring
There is bearing dustproof groove, the two sides of each high revolving speed deep groove ball bearing is each provided with 1 novel anti-leakage sealing ring；Novel anti-leakage sealing
Circle includes sealing circle body, and the novel anti-leakage sealing ring is integrally in circular ring shape；The sealing circle body includes sealing ring main body, by circle
The sealing outer lip of annular outboard and the sealing epipharynx on the inside of circular ring shape；The sealing epipharynx includes contacting lip and non-contact lip,
The contact lip is arranged in the one side contacted with high revolving speed deep groove ball bearing and extends to bottom；The sealing outer lip and outer
Enclose tight fit, the sealing epipharynx and inner ring tight fit, it is characterised in that:
It further include profile skeleton, the profile skeleton is structure as a whole, is whole in circular ring shape, the either side of circular ring shape profile skeleton
Sectional view includes the supportive body, sealing outer lip supporter in the outer part and sealing epipharynx supporter in the inner part at middle part；It is described
Sealing outer lip supporter includes the traversing section connecting with supportive body and the raised section longitudinally disposed outward by traversing section；
The supportive body is pressed with sealing ring main body, is tightly secured together, and high revolving speed deep-groove ball is being leaned in supportive body setting
The one side of bearing, the sealing outer lip supporter are covered by sealing outer lip, and the sealing epipharynx supporter is covered by close
It seals in epipharynx；
The angle of the traversing section and supportive body is 90-100 °, and the raised section is parallel with supportive body.
2. novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring according to claim 1, it is characterised in that: novel
Sealing outer lip, sealing epipharynx and the outer ring of leakproof seal, the bearing dustproof groove of inner ring are tightly connected.
3. novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring according to claim 1, it is characterised in that: described
The angle of traversing section and supportive body is 95 °.
4. novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring according to claim 1, it is characterised in that: described
It seals epipharynx supporter to tilt to high revolving speed deep groove ball bearing side, the angle of the sealing epipharynx and supportive body is 120-
160°。
5. novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring according to claim 3, it is characterised in that: described
The angle of the sealing epipharynx and supportive body is 141 °.
6. novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring according to claim 1, it is characterised in that: special-shaped
Skeleton is stamped to form by high strength structure plate through conventional stamping apparatus and the dedicated cold-punching mold of profile skeleton, the profile skeleton
It is SPCC by the product grade of high strength structure plate, the product type of the stamping equipment is that J23-16 open type can incline pressure
Machine.
7. novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring according to claim 1, it is characterised in that: described
The diameter of high revolving speed deep groove ball bearing centre bore is 12mm, and the outer diameter of high revolving speed deep groove ball bearing is 32mm.
8. novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring according to claim 1, it is characterised in that: described
Sealing ring material of main part Japan's JSR nitrile rubber, product grade are N230 virgin rubber and auxiliary material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910495702.4A CN110094427A (en) | 2019-06-10 | 2019-06-10 | Novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910495702.4A CN110094427A (en) | 2019-06-10 | 2019-06-10 | Novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110094427A true CN110094427A (en) | 2019-08-06 |
Family
ID=67450632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910495702.4A Withdrawn CN110094427A (en) | 2019-06-10 | 2019-06-10 | Novel high rotary speed deep groove ball bearing waterproof leakproof rouge sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110094427A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08226449A (en) * | 1995-02-17 | 1996-09-03 | Ntn Corp | Antifriction bearing sealing device and seal thereof |
| JP2006336734A (en) * | 2005-06-01 | 2006-12-14 | Nsk Ltd | Rolling bearing with sealing device |
| JP2008014484A (en) * | 2006-03-27 | 2008-01-24 | Ntn Corp | Rolling bearing |
| JP2008163995A (en) * | 2006-12-27 | 2008-07-17 | Ntn Corp | Grease filled double row angular bearing |
| JP2008175301A (en) * | 2007-01-18 | 2008-07-31 | Nsk Ltd | Rolling bearing with sealing device |
| CN101240816A (en) * | 2007-02-09 | 2008-08-13 | 上海清正汽车轴承有限公司 | Bearing inner ring unslotted sealing structure |
| JP2013253689A (en) * | 2012-05-10 | 2013-12-19 | Nsk Ltd | Oil seal and sealed roller bearing |
| JP2017015121A (en) * | 2015-06-29 | 2017-01-19 | 日本精工株式会社 | Rolling bearing |
| WO2017069225A1 (en) * | 2015-10-23 | 2017-04-27 | ジヤトコ株式会社 | Sealed roller bearing and belt-type continuously-variable transmission |
| CN210218440U (en) * | 2019-06-10 | 2020-03-31 | 余姚市新丰轴承有限公司 | Waterproof leak protection fat sealing washer |
-
2019
- 2019-06-10 CN CN201910495702.4A patent/CN110094427A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08226449A (en) * | 1995-02-17 | 1996-09-03 | Ntn Corp | Antifriction bearing sealing device and seal thereof |
| JP2006336734A (en) * | 2005-06-01 | 2006-12-14 | Nsk Ltd | Rolling bearing with sealing device |
| JP2008014484A (en) * | 2006-03-27 | 2008-01-24 | Ntn Corp | Rolling bearing |
| JP2008163995A (en) * | 2006-12-27 | 2008-07-17 | Ntn Corp | Grease filled double row angular bearing |
| JP2008175301A (en) * | 2007-01-18 | 2008-07-31 | Nsk Ltd | Rolling bearing with sealing device |
| CN101240816A (en) * | 2007-02-09 | 2008-08-13 | 上海清正汽车轴承有限公司 | Bearing inner ring unslotted sealing structure |
| JP2013253689A (en) * | 2012-05-10 | 2013-12-19 | Nsk Ltd | Oil seal and sealed roller bearing |
| JP2017015121A (en) * | 2015-06-29 | 2017-01-19 | 日本精工株式会社 | Rolling bearing |
| WO2017069225A1 (en) * | 2015-10-23 | 2017-04-27 | ジヤトコ株式会社 | Sealed roller bearing and belt-type continuously-variable transmission |
| CN210218440U (en) * | 2019-06-10 | 2020-03-31 | 余姚市新丰轴承有限公司 | Waterproof leak protection fat sealing washer |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190806 |